Effects of torrential rain on the public health. alteib
University of Medical Sciences and Technology Khartoum - Sudan EFFECTS OF TORRENTIALRAIN ON THE PUBLIC HEALTH Presented by Dr. Alteib Yousif Abdelgadir Public and Tropical Health Master Program - Patch 11 April 2012
SESSION OBJECTIVESBy the end of the session, participants are expected to:• Define possible causes of torrential rains.• Identify problems that could happen due to torrential rains.• Understand the effects of torrential rains on Health.• Be aware about possible ways of prevention of torrential rains.
INTRODUCTION• Torrential rains, flash floods, and their effects, frequently make headlines.• Forecasts of torrential rains possibility of flash floods. However, all too often, flash floods occur before people can prepare for them.• Torrential rains and flash floods could be a natural disaster that takes lives and destroys homes and communities.
CAUSES OF TORRENTIAL RAIN (FLASH FLOOD)Associated factors:• Rain density, time and duration• Speed and force of rains and floods• Drainage of fallen water (water pathway, water basin)
Cont - CAUSES OF TORRECTIAL RAIN (FLASH FLOOD)Torrential rain most probably happen due to climate changes.Heavy rainfall usually occurs during:• Thunderstorms• tropical storms and hurricanes.
EXTENT OF THE PROBLEM Destruction Erosion Diseases and impacts
Cont - EXTENT OF THE PROBLEM• Rain can break dams and levees:• Images of cars swept away, trees uprooted and buildings swamped illustrate the power of flash floods to sweep away everything in their path within a very short period of time.
EFFECTS ON HEALTHDirect effects on public health:• Destruction Trauma DeathIndirect effects on public health:• Erosion of lands Negative economical effects poverty Food insecurity malnutrition, low immunity and communicable diseases
Cont - EFFECTS ON HEALTH• Impaired water drainage water stagnation water contamination diseases (water born and water related diseases)• Mold grows in flooded houses added health problems (allergies, ...)
Cont - EFFECTS ON HEALTH• Destroy sewage systems raw sewage to flow into local water systems contaminated drinking water severe public health problems, such as cholera and other waterborne diseases.
Cont - EFFECTS ON HEALTH• Destruction of buildings spreads toxins into the water system (paints, gasoline and pesticides) death of fish and destruction of river, lake and coastal ecosystems.
Cont - EFFECTS ON HEALTH• Destruction and interruption of gas and electricity supplies impaired transport system difficult evacuation for emergency services to bring in aid.
PREVENTION• Prevention of climate changes causes (environment protection).• Effective drainage system.• Community Based Disaster Risk reduction Projects.• Rapid and effective intervention systems.
REFERENCES• Thinkquest; Natural Disasters; Flash Floods• Tulane University; Flood Hazards• International Rescue Committee; IRC Responds to Cholera Outbreak• Internet: The Effects of Flash Floods | eHow.com http://www.ehow.com/info_8028650_effects- flash-floods.html#ixzz1sUPxhMff www.ifrc.org/en/nouvelles/nouvelles/africa/sud an/